The best biotech CEO of 2012 is Leonard Schleifer of Regeneron Pharmaceuticals (REGN_). Schleifer was the top pick of TheStreet readers for his execution of one of the most successful new drug launches in history. Eylea was approved in November 2011 to treat a common cause of blindness. In just nine months, Eylea sales have already reached $562 million with an annual run rate close to $1 billion, well above the company's -- and investors' -- initial forecasts.